LNG
South Hook, opened in 2009 with five storage tanks, is described as Europe's largest LNG terminal. With Dragon LNG, the two terminals can provide up to a quarter of UK gas demand.
Wales · explosion proof
Explosion-Proof Mobile Phone in Wales
The Milford Haven Waterway in Pembrokeshire is Wales' largest port and a major energy hub. Milford Haven is the largest port in Wales and the third-largest in the United Kingdom, run by the Milford Haven Port Authority as a trust port that manages Milford Docks, Milford Marina and Pembroke Port. If you are specifying an explosion proof mobile phone for Wales (Milford Haven Waterway), this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicexplosion proof
DeviceMobile Phone
RouteSpecification
WhereWales
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Wales (Milford Haven Waterway): pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · explosion proof
Checklist: explosion proof mobile phone for Wales (Milford Haven Waterway)
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Wales (Milford Haven Waterway): Refinery process units, LNG storage and regasification, Crude and product jetties | Classified by the site operator |
Product · Wales
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Wales. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Wales (Milford Haven Waterway)
Working in Wales (Milford Haven Waterway): operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
Operators and companies on site
- Valero
- South Hook LNG Terminal Company
- Milford Haven Port Authority
Classified areas to expect
- Refinery process units
- LNG storage and regasification
- Crude and product jetties
- Tank farms
Local conditions · Wales (Milford Haven Waterway)
Conditions in Wales (Milford Haven Waterway) that affect handheld equipment
Remote location
The waterway is a deep natural harbour at the western end of Wales, so contractors often travel in for turnarounds.
Field notes · Wales (Milford Haven Waterway)
More about Wales (Milford Haven Waterway) that matters for portable equipment
Wales (Milford Haven Waterway): projects and investment
By 2018 Wales generated over 3,864 MW of renewable energy from 68,728 projects, and the Welsh Government set a target of meeting 70% of electricity demand from Welsh renewables by 2030.
Wales (Milford Haven Waterway): rules and approvals
In 2012 the Milford waterway was announced as an Enterprise Zone because of its importance to the energy sector, and parts of it lie within the Pembrokeshire Coast National Park with protected sites.
Wales (Milford Haven Waterway): industry on the ground
Wales produced 30.2 TWh of electricity in 2018 and consumed 14.9 TWh, making it a net exporter, with gas generation at Baglan Bay and wind at Cefn Croes among its mix of plant.
Wales (Milford Haven Waterway): industry on the ground
Airbus Broughton in the north-east employs over 6,500 people, mostly in manufacturing, and is responsible for wing assembly for most Airbus aircraft, so composites and solvent areas exist alongside heavy engineering.
The term · explosion proof
What “explosion proof” means for a smartphone
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Wales (Milford Haven Waterway). On the waterway, 'explosion-proof' covers refinery process units, LNG storage and regasification, crude and product jetties and tank farms. Flameproof Ex d suits fixed items, while intrinsic safety suits a handheld used on rounds. Each operator chooses the concept for its own areas, and LNG areas can differ from refinery areas.
The route · specification
Specifying an explosion proof mobile phone for Wales
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Wales
Frequently asked questions
Can we buy an explosion proof mobile phone in Wales today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does an explosion proof mobile phone in Wales cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Is the IS-04Z1 explosion proof or intrinsically safe?
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Which areas at Wales (Milford Haven Waterway) would use it?
Likely candidates are refinery process units, lng storage and regasification, crude and product jetties, tank farms. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Do Welsh sites follow the same Ex marking rules as the rest of Great Britain?
Yes, Wales is within Great Britain's product rules, where equipment for explosive atmospheres is normally supplied with UKCA marking and CE-marked ATEX equipment has been widely accepted under transitional arrangements. Check the current position and any site-specific rules with the operator before supplying handheld devices.
How does the Welsh climate affect devices used outdoors?
Wales is mild but wet and windy, with salt spray at coastal terminals such as Milford Haven. Ingress protection, corrosion resistance and condensation tolerance are more important than extreme temperature ratings. Ask the site about its own environmental requirements for portable electronics.
What hazardous-area work is there in Wales?
The Milford Haven Waterway in Pembrokeshire hosts Valero's Pembroke refinery, which began operating in 1964, and the South Hook and Dragon LNG terminals. Zone 1 work arises at process units, tank farms and gas handling areas. Confirm requirements with each operator's HSE and procurement teams.
Related guides
Keep exploring
Other guides for Wales, other places in United Kingdom, and the pages behind them.
ATEX and IECEx Mobile Phone in WalesSame place, different guide
IECEx Mobile Phone in WalesSame place, different guide
Rugged Mobile Phone in WalesSame place, different guide
Hazardous Area Mobile Phone in WalesSame place, different guide
Intrinsically Safe Mobile Phone in WalesSame place, different guide
Ex-Proof Mobile Phone in WalesSame place, different guide
ATEX and IECEx Mobile Phone Distributor in EnglandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in Northern IrelandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in NorwichElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in LondonElsewhere in United Kingdom
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · Wales (Milford Haven Waterway)
Ask about the IS-04Z1 for Wales (Milford Haven Waterway), United Kingdom
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Enquiry · Wales (Milford Haven Waterway)
Launching Q4 2026
Planning for Wales?
Name the site and the operator and we will send what is available before launch.